95' Chevy S10 Blazer 4.3L Vortech Runs rough and smells strongly of gas with a backfire or 2 every once in a while.

Runs really rough and backfires. Idling just sounds horrific. We have been waiting for the fuel pressure testing hardware from amazon because we think it might be related to it smelling like gas. Please help.

If it has been a while since you installed some
new plugs would not hurt to replace them
because it is really hard to look at a spark plug
and tell if it is miss firing or not. Also would do
what tennisshoes suggested.

I don't know exactly what condition the vehicles parts are in because I have just bought it somewhat recently. I will definitely try your suggestions but if anybody has more suggestions I would still like to hear them.

Update: we have found most of the
problem! We replaced the spark plugs
and the distributor cap and rotor and it
runs much better! It still does run a little
slow so we are going to do some
compression tests and fuel pressure
tests

Don't be surprised if it needs a fuel pressure regulator, backfiring is
really hard on them, once you get it running much better, get it
warmed up throughly and do a few wide open throttle takes off and
blow out that carbon build up in the exhaust system, it will have
some.

Your Answer

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